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128 lines
4.6 KiB
128 lines
4.6 KiB
/*****************************************************************************
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* desc_63.h: ETSI EN 300 468 Descriptor 0x63: Partial Transport Stream
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*****************************************************************************
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* Copyright (C) 2011 Unix Solutions Ltd.
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*
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* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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/*
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* Normative references:
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* - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
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*/
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#ifndef __BITSTREAM_DVB_DESC_63_H__
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#define __BITSTREAM_DVB_DESC_63_H__
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#include <bitstream/common.h>
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#include <bitstream/mpeg/psi/descriptors.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/*****************************************************************************
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* Descriptor 0x63: Partial Transport Stream
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*****************************************************************************/
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#define DESC63_HEADER_SIZE (DESC_HEADER_SIZE + 8)
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static inline void desc63_init(uint8_t *p_desc)
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{
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desc_set_tag(p_desc, 0x63);
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desc_set_length(p_desc, DESC63_HEADER_SIZE - DESC_HEADER_SIZE);
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p_desc[2] = 0xc0;
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p_desc[5] = 0xc0;
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p_desc[8] = 0xc0;
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}
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static inline uint32_t desc63_get_peak_rate(const uint8_t *p_desc)
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{
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return ((p_desc[2] & 0x3f) << 16) | (p_desc[3] << 8) | p_desc[4];
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}
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static inline void desc63_set_peak_rate(uint8_t *p_desc, uint32_t i_peak_rate)
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{
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p_desc[2] = ((i_peak_rate >> 16) & 0xff) | 0xc0;
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p_desc[3] = (i_peak_rate >> 8) & 0xff;
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p_desc[4] = i_peak_rate & 0xff;
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}
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static inline uint32_t desc63_get_min_overall_smoothing_rate(const uint8_t *p_desc)
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{
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return ((p_desc[5] & 0x3f) << 16) | (p_desc[6] << 8) | p_desc[7];
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}
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static inline void desc63_set_min_overall_smoothing_rate(uint8_t *p_desc, uint32_t i_min_overall_smoothing_rate)
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{
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p_desc[5] = ((i_min_overall_smoothing_rate >> 16) & 0xff) | 0xc0;
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p_desc[6] = (i_min_overall_smoothing_rate >> 8) & 0xff;
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p_desc[7] = i_min_overall_smoothing_rate & 0xff;
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}
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static inline uint32_t desc63_get_max_overall_smoothing_buffer(const uint8_t *p_desc)
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{
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return ((p_desc[8] & 0x3f) << 8) | p_desc[9];
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}
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static inline void desc63_set_max_overall_smoothing_buffer(uint8_t *p_desc, uint32_t i_max_overall_smoothing_buffer)
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{
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p_desc[8] = ((i_max_overall_smoothing_buffer >> 8) & 0xff) | 0xc0;
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p_desc[9] = i_max_overall_smoothing_buffer & 0xff;
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}
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static inline bool desc63_validate(const uint8_t *p_desc)
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{
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return desc_get_length(p_desc) >= DESC63_HEADER_SIZE - DESC_HEADER_SIZE;
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}
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static inline void desc63_print(const uint8_t *p_desc, f_print pf_print,
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void *opaque, print_type_t i_print_type)
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{
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switch (i_print_type) {
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case PRINT_XML:
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pf_print(opaque,
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"<PARTIAL_TRANSPORT_STREAM_DESC peak_rate=\"%u\""
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" min_overall_smoothing_rate=\"%u\""
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" max_overall_smoothing_buffer=\"%u\"/>",
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desc63_get_peak_rate(p_desc),
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desc63_get_min_overall_smoothing_rate(p_desc),
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desc63_get_max_overall_smoothing_buffer(p_desc)
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);
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break;
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default:
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pf_print(opaque,
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" - desc 63 partial_transport_stream peak_rate=%u"
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" min_overall_smoothing_rate=%u"
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" max_overall_smoothing_buffer=%u",
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desc63_get_peak_rate(p_desc),
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desc63_get_min_overall_smoothing_rate(p_desc),
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desc63_get_max_overall_smoothing_buffer(p_desc)
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);
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}
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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